package com.xjlsoft.weather.config;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
/**
 * @ProjectName:
 * @Package: com.backstage.config
 * @ClassName: ApplicationContextProvider
 * @Description: 获取bean对象的工具类
 * @Author: wangzhilong
 * @CreateDate: 2018/8/31 13:26
 * @Version: 1.0
 */
/**
 * Author:ZhuShangJin
 * Date:2018/7/3
 */
@Component
public class ApplicationContextProvider implements ApplicationContextAware {
 /**
  * 上下文对象实例
  */
 private static ApplicationContext applicationContext;
 
 @Override
 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
	 ApplicationContextProvider.applicationContext = applicationContext;
 }
 /**
  * 获取applicationContext
  *
  * @return
  */
 public static ApplicationContext getApplicationContext() {
  return applicationContext;
 }
 /**
  * 通过name获取 Bean.
  *
  * @param name
  * @return
  */
 public static Object getBean(String name) {
  return getApplicationContext().getBean(name);
 }
 /**
  * 通过class获取Bean.
  *
  * @param clazz
  * @param <T>
  * @return
  */
 public static <T> T getBean(Class<T> clazz) {
  return getApplicationContext().getBean(clazz);
 }
 /**
  * 通过name,以及Clazz返回指定的Bean
  *
  * @param name
  * @param clazz
  * @param <T>
  * @return
  */
 public static <T> T getBean(String name, Class<T> clazz) {
  return getApplicationContext().getBean(name, clazz);
 }
}